A study is conducted to determine the relationship between a driver’s age and the number of accidents a person has over a one-year period. The data are shown below. At α = 0.05, using Pearson correlation, is there a significant relationship between a driver’s age and the number of accidents a person? 1. What is the value of r? a) -0.172 b) -0.892 c) 0.172 d) 0.892 2.The regression equation is defined by y' = a + bx. What is the value for a? a) 4.02 b) 3.36 c) 3.07 d) 2.86 3. The regression equation is defined by y' = a + bx. What is the value for b? a)0.34 b) 0.29 c) -0.03 d) -0.34
1-5. A study is conducted to determine the relationship between a driver’s age and the number of accidents a person has over a one-year period. The data are shown below. At α = 0.05, using Pearson
1. What is the value of r?
a) -0.172
b) -0.892
c) 0.172
d) 0.892
2.The regression equation is defined by y' = a + bx. What is the value for a?
a) 4.02
b) 3.36
c) 3.07
d) 2.86
3. The regression equation is defined by y' = a + bx. What is the value for b?
a)0.34
b) 0.29
c) -0.03
d) -0.34
4. If we do t test for the
a)1.36
b) 1.28
c) -0.43
d) -0.56
5. What is the critical value to be used in the given problem?
a) ±1.943
b) ±2.306
c) ±2.365
d) ±2.447
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